JPH0440435U

JPH0440435U -

Info

Publication number: JPH0440435U
Application number: JP8207390U
Authority: JP
Priority date: 1990-08-01
Filing date: 1990-08-01
Publication date: 1992-04-06

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例であるキースイツ
チ付き電子機器のビニールシートを取外した状態
の斜視図、第２図は同上電子機器のキーボード部
の要部斜視図、第３図は同上キーボード部の要部
断面図、第４図は第３図に示すキーボタンの頭部
をビニールシートを介して指で押した状態の断面
図、第５図は従来のキースイツチ付き電子機器の
分解斜視図、第６図は側面図、第７図は第６図に
おけるキーボタン部分の断面図である。２１……ケース、２２……カバー、２３……有
底凹部、２４……外輪固定パターン、２５……キ
ーボタン部、２７……キーボタン、２８……内部
固定パターン、２９……行接続パターン、３１…
…列接続パターン。 Figure 1 is a perspective view of an electronic device with a key switch, which is an embodiment of this invention, with the vinyl sheet removed; Figure 2 is a perspective view of the main parts of the keyboard of the same electronic device; and Figure 3 is the keyboard part of the same device. 4 is a sectional view of the key button head shown in FIG. 3 pressed with a finger through a vinyl sheet, and FIG. 5 is an exploded perspective view of a conventional electronic device with a key switch. 6 is a side view, and FIG. 7 is a sectional view of the key button portion in FIG. 6. 21... Case, 22... Cover, 23... Bottomed recess, 24... Outer ring fixing pattern, 25... Key button part, 27... Key button, 28... Internal fixing pattern, 29... Line connection pattern , 31...
...column connection pattern.

Claims

[Scope of utility model registration request]

A keyboard section is provided on the top surface of the cover, and key buttons, movable contacts, fixed contacts, and a keyboard printed circuit board are housed inside, and the case covered with this cover is connected to the fixed contacts through a row connection pattern and a column connection pattern. In an electronic device with a key switch in which a case printed circuit board is housed, a plurality of bottomed recesses are provided in the keyboard section, and an annular plate-shaped outer ring fixed contact pattern is metal-deposited on each bottom surface, and the outer ring fixed contact pattern is A circular internal fixed contact pattern is metal-deposited on the inner periphery of the pattern, and each outer ring fixed contact pattern and each internal fixed contact pattern are connected to the case printed circuit board via a row connection pattern and a column connection pattern, respectively. A bottomed cylindrical key button formed of a conductive rubber material is inserted into the bottom recess, and the open end surface of the bottomed cylindrical shape is brought into contact with the outer ring fixed contact pattern, so that the plurality of bottomed recesses and key buttons are connected at once. An electronic device with a key switch, characterized in that it is covered with an elastic insulating vinyl sheet.